Art of treating and utilizing chlorin.



No. 786,595. I PATENTED APR.4,1905.;

E. C. PARAMORE.

ART OI TREATING AND UTILIZING GI-ILORIN; APPLICATION FILED 0016 1903. RENEWED SEPT. 1. 1904.

I "1 mu WITNESSES mwxmg CQWWWW UNITED STATES Patented April 4, 1905.

PATENT FFICE.

ART OF TREATING AND UTILIZING CHLOF RI N.

SPECIFICATION forming part of Letters Patent N 0. 786,595, dated April 4, 1905.

Application filed October 5, 1903. Renewed September 1 1904. Serial No. 223,001- I new and useful Improvement in the Art of- Treating and Utilizing Chlorin Gas, of which the following is a specification.

The bleaching properties of chlorin gas are well known; but its useful applicability in the arts is restricted by its disagreeable odor and its deleterious etfects upon animal life, as well as by thedifiiculty of divesting articles bleached therebyof the residual odor of the gas. The purpose of the present invention is to increase its bleaching properties and divest it and articles or commodities bleached thereby of the disagreeable .odor.

To this end this invention consists in subjecting streams or currents of dry chlorin gas to electric disclufu'ges of high tension discharged through dielectric partitions with an exclusion of air and with the removal of all liquid percipitation incident tothe process from the resulting product and the application of the gas thus treated to articles or commodities to be bleached either directly or by immersion in an aqueous solution of the gas and the returning of the gas after beingused to again pass through the electrifying apparatus with additional freshly-generated gas.

The drawings show in Figu re 1 the invention as applied in an apparatus to the bleaching of a solution. In Fig. 2 is shown the invention as applied in'an apparatus to make an aqueous solution of the gas applicable to the bleaching of solids. Fig. 3 shows the electrodes and adjacent parts for electrifying the current of gas. Fig. 4 shows a modification thereof.

Referring to Fig. 1 of the drawings, 1 shows a retort containing black oxid of manganese having a funnel and siphon-tube 2, through which muriatic acid is introduced. 3 of the retort is connected to the dip-tube 4 of a wash-bottle 5 containing a liquid, wa: ter, or water and sulfuric acid and having a safety-tube 6 extending from near the bottom upwardly with an open end (as a safeguard against excessive pressure) and the deliverypipe 7 connecting the top of the bottle 5 with The necka pump 8. The wash-bottle 5 is not essential in this process, and the retort-neck 3 may be connected directly to the pipe 7. The pump 8 delivers the gas received from the bottles or retort 1 through a channel 9 having walls of high tension, which current is discharged in sparks through the dielectric walls- 10 of the channel 9 through the current of gas passing through the channel, and anyliquid precipitated in the channel 9 is arrested and removed from a trap 11, and the dry gas passes through the pipe 12 into the solution to be bleached in aclose vessel 13 and rising above the liquid in the vessel 13 is discharged through a check-valve 17 and tube 15 into the pipe 7, where it rei'inters the pump, is again electrified, and used further with fresh gas supplied from the retort 1 through the washing-bottle The preferred material for the tanks, pump, \vashbottle, and pipes is glass. Vitrified earthenware may be used, and for the large sized apparatus the tanks and wash-bottle may be made of wood coated and saturated withparaflin. The electrodes may be of carbon 01' of metal.

Referring to Fig. 2, the gas is delivered from pump 8 and channel 9' after being electrifiedvinto a closed tank 16', where it is absorbed by water, and any unabsorbed gas-is discharged through a check-valve 17' and pipe 18 to-the pump 8'.

Referring to Fig. 3 and Fig. 4, across-section of the channel 9 is shown and the electrodes 19. These may be carbon, as shown in Fig. 3. They may be of metallic brushes of wire, as shown in Fig. 4, and must be so located that the discharge of sparks or-flashesis through the dielectric partition or walls 10 of the channel 9. i

The current employed may be either high tension direct andintermittent or alternating of high frequency and is bestderived from the secondary helices of a Ruhrnkorfi coi'ii? The electrodes 19 may be protected from contact with theatmosphere; but that isnot es-- sential to the operation of my invention, The Well-known efi'ect of generating any ozone from contacting with the air may he thus avoided.

Chlorin gas thus treated has greater bleaching properties, little or no odor, and hleaches permanently the articles to which it is applied and does not impair the strength of materials to which it is applied and appears to separate gummy matter from fibers to which it is applied and to precipitate foreign substances from solutions bleached with it.

The operation of the process in this appa ratus is as follows: Black oxid of manganese (peroxid of manganese) is placed in the retort 1 and muriatic acid (an aqueous solution of hydrochloric acid) is introduced through the tunnel and siphon-tube. Heat is applied to the retort either by electric coils or by steam or tire and all air expelled from the apparatus either by blowing it out with the stcanror by pumping it out, for which purpose the delivery-pipe of the pump 8 is temporarily opened to the atmosphere, or the check-Valve '17 may be opened to the atmosphere temporarily or the air may be exhausted by means of a trompe. When the chlorin gas has filled the channel 9, the electric circuit is closed and current discharged in flashes through the dielectric walls of the channel J and through the stream of gas flowing through the channel, the pump 8 is put in operation, and the gas is continuously circulated through the liquid in the vessel 13 and the unabsorbed returns to the pump and is thus maintained in continuous circulation through the clectritving apparatus.

Having described my invention andthe operation thereof, what I claim is I 1. The improvement in the art of treating chlorin gas, consisti g first, in emptying the air from a chlorm-generator and connected again electrically treated With further sup- V plies of gas as and for the purposes set forth.

2. The improvement inthe art of treating chlorin gas, consisting first, in emptying the air from a ehlorin-generator and connected vessels, second, generating chlorin gas, third, passing the gas through an electrifying-channel having dielectric walls, fourth, electrifying the gas in said channel by electric flashes passing through the dielectric walls, fifth,

withdrawing liquid precipitation from theelectrii'ying-channel, sixth, circulating the gas through Water in a closed vessel and returning any unabsorbed gas to the electrifying-channel for treatment electrically with further supplies of gas.

EDWARD C. PARAMORE.

Witnesses: V

IRA S'rovne MYERS, (Jr-ms. N. McCoNNnLL. 

